SIST EN ISO 21787:2006/A1:2019

SLOVENSKI STANDARD
01-oktober-2019
Industrijski ventili - Zaporni ventili iz plastomernih materialov - Dopolnilo A1 (ISO
21787:2006/Amd 1:2019)
Industrial valves - Globe valves of thermoplastics materials - Amendment 1 (ISO
21787:2006/Amd 1:2019)
Industriearmaturen - Ventile aus Thermoplasten - Änderung 1 (ISO 21787:2006/Amd
1:2019)
Robinetterie industrielle - Robinets à soupape en matériaux thermoplastiques -
Amendement 1 (ISO 21787:2006/Amd 1:2019)
Ta slovenski standard je istoveten z: EN ISO 21787:2006/A1:2019
ICS:
23.060.10 Zapirni ventili (kroglasti) Globe valves
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21787:2006/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 23.060.10
English Version
Industrial valves - Globe valves of thermoplastics materials
- Amendment 1 (ISO 21787:2006/Amd 1:2019)
Robinetterie industrielle - Robinets à soupape en Industriearmaturen - Ventile aus Thermoplasten -
matériaux thermoplastiques - Amendement 1 (ISO Änderung 1 (ISO 21787:2006/Amd 1:2019)
21787:2006/Amd 1:2019)
This amendment A1 modifies the European Standard EN ISO 21787:2006; it was approved by CEN on 21 June 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21787:2006/A1:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU (Pressure Equipment Directive) aimed to be
covered. 4

European foreword
This document (EN ISO 21787:2006/A1:2019) has been prepared by Technical Committee ISO/TC 138
"Plastics pipes, fittings and valves for the transport of fluids" in collaboration with Technical Committee
CEN/TC 69 “Industrial valves” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2020, and conflicting national standards
shall be withdrawn at the latest by February 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 21787:2006/Amd 1:2019 has been approved by CEN as EN ISO 21787:2006/A1:2019
without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU (Pressure Equipment Directive)
aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/071 to
provide one voluntary means of conforming to essential requirements of Directive 2014/68/EU of the
European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the
Member States relating to the making available on the market of pressure equipment.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of
Directive 2014/68/EU
Essential Requirements of Clause(s)/subclause(s) of Remarks/Notes
Directive 2014/68/EU this EN
2.2.1 4.3 Design loading factors
2.2.2 4.6.1; 5.2.1; 5.2.2; 5.2.3; 5.2.5 Design for adequate strength
2.7 4.8.1 Wear
3.1.5 4.7.1 Traceability
3.2.2 4.6.1; 4.6.3 Strength proof test
3.4 4.8.3 Operating instructions
4.1, 4.2 a) 4.2; 4.3 Materials for pressurised parts
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
INTERNATIONAL ISO
STANDARD 21787
First edition
2006-03-15
AMENDMENT 1
2019-07
Industrial valves — Globe valves of
thermoplastics materials
AMENDMENT 1
Robinetterie industrielle — Robinets à soupape en matériaux
thermoplastiques
AMENDEMENT 1
Reference number
ISO 21787:2006/Amd.1:2019(E)
©
ISO 2019
ISO 21787:2006/Amd.1:2019(E)
© ISO 2019
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ii © ISO 2019 – All rights reserved

ISO 21787:2006/Amd.1:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for
the transport of fluids, Subcommittee SC 7, Valves and auxiliary equipment of plastics materials.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
SIST EN ISO 21787:2006/A1
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